Has anyone grown their fems? From the descriptions a lot of their strains that were crossed with female pollen and it has been a debate between some respected growers as to is it a true cross or not. I guess you would have to have it tested to find out for sure. Has anyone had a hermi or other problem with Brothers Grimm Seeds?
I reuse it from time to time and I sift it through a small pan with a mesh like Rick uses. I use a bit of cal/mag and some WP mykos in PH'd water, more perlite is a good idea too. Worm Castings sound interesting, a little extra N for veg, I may try that next time.